 <div class="form-box" id="login-box">
            <div class="header">Entrar</div>
            <form action="javascript:login_admin();" method="post">
                <div class="body bg-gray">
                    <div class="form-group">
                        <input type="text" name="userid" class="form-control" placeholder="User ID" required />
                    </div>
                    <div class="form-group">
                        <input type="password" name="password" class="form-control" placeholder="Password" required />
                    </div>          
                    <div class="form-group">
                        <input type="checkbox" name="remember_me"/> Remember me
                    </div>
                </div>
                <div class="footer">                                                               
                    <button type="submit" class="btn bg-olive btn-block">Sign me in</button>        
                </div>
            </form>

        </div>